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Bryconops Tocantinensis
''Bryconops tocantinensis'' is a small freshwater fish from the rivers of Brazil. It has yellow-gold scales on its back and white scales on its belly, with a bright-silver stripe marking the divide between the two. It gets the name "tocantinensis" from its endemism to the upper Tocantins basin drainage - specifically, the Conceição River. Description ''Bryconops tocantinensis'' reaches about 6.5 cm (2.6 in) in Standard Length, standard length (excluding the tail fin), which makes it one of the smaller members of the genus. The dorsal, adipose, and caudal fins are all entirely orange, which is a similarity it shares only with congeners ''Bryconops humeralis, B. humeralis'' and ''Bryconops vibex, B. vibex''. However, it can easily be distinguished from the two because it lacks Humeral spot, humeral spots (whereas the others have one on each side) and because it lacks teeth on the maxilla (vs. 1-3 on each side). The scales on the upper half of the body are a yellow-gold color, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Palma River
The Palma River is a river of Tocantins state in central Brazil. See also * List of rivers of Tocantins List of rivers in Tocantins ( Brazilian State). The list is arranged by drainage basin, with respective tributaries indented under each larger stream's name and ordered from downstream to upstream. The Tocantins state is located entirely within ... References External links Brazilian Ministry of Transport Rivers of Tocantins {{Tocantins-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
International Union For Conservation Of Nature
The International Union for Conservation of Nature (IUCN; officially International Union for Conservation of Nature and Natural Resources) is an international organization working in the field of nature conservation and sustainable use of natural resources. It is involved in data gathering and analysis, research, field projects, advocacy, and education. IUCN's mission is to "influence, encourage and assist societies throughout the world to conserve nature and to ensure that any use of natural resources is equitable and ecologically sustainable". Over the past decades, IUCN has widened its focus beyond conservation ecology and now incorporates issues related to sustainable development in its projects. IUCN does not itself aim to mobilize the public in support of nature conservation. It tries to influence the actions of governments, business and other stakeholders by providing information and advice and through building partnerships. The organization is best known to the wider p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancistrus
''Ancistrus'' is a genus of nocturnal freshwater fish in the family Loricariidae of order Siluriformes, native to freshwater habitats in South America and Panama. Fish of this genus are common in the aquarium trade where they are known as bushynose or bristlenose catfish. In the aquarium hobby they are often referred to as bushynose or bristlenose plecos instead, but this may lead to confusion as "pleco" usually is used for ''Hypostomus plecostomus'' and its allies and is often used as a catchall term for any loricariids remotely resembling that species. Taxonomy The type species is ''Ancistrus cirrhosus''. This genus is the largest genus within the tribe Ancistrini. The name ancistrus derives from the Ancient Greek ''agkistron'' "hook" – a reference to the form of the cheek odontodes. The genera ''Pristiancistrus'', ''Thysanocara'' and ''Xenocara'' are now synonyms of ''Ancistrus''. Description ''Ancistrus'' species show all the typical features of the Loricariidae ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knodus Breviceps
''Knodus'' is a genus of characins, small freshwater fish from South America.Thomaz, A.T., Arcila, D., Ortí, G. & Malabarba, L.R. (2015): Molecular phylogeny of the subfamily Stevardiinae Gill, 1858 (Characiformes: Characidae): classification and the evolution of reproductive traits. ''BMC Evolutionary Biology, (2015) 15: 146.'' Species There are currently 30 recognized species of this genus: * '' Knodus alpha'' ( C. H. Eigenmann, 1914) * '' Knodus borki'' Zarske, 2008 * '' Knodus breviceps'' ( C. H. Eigenmann, 1908) * '' Knodus caquetae'' Fowler, 1945 * '' Knodus chapadae'' ( Fowler, 1906) * '' Knodus cinarucoense'' ( Román-Valencia, Taphorn & Ruiz-C., 2008) * '' Knodus delta'' Géry, 1972 * '' Knodus deuterodonoides'' ( C. H. Eigenmann, 1914) * '' Knodus dorsomaculatus'' K. M. Ferreira & Netto-Ferreira, 2010 * '' Knodus figueiredoi'' Esguícero & R. M. C. Castro, 2014Esguícero, A.L.H. & Castro, R.M.C. (2014): ''Knodus figueiredoi'', a new characid from the Rio d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astyanax Goyacensis
In Greek mythology, Astyanax (; grc, Ἀστυάναξ ''Astyánax'', "lord of the city") was the son of Hector, the crown prince of Troy, and his wife, Princess Andromache of Cilician Thebe."Astyanax". ''Oxford Classical Dictionary''. Oxford, 1949, p. 101 (''s.v.'' "Ἀνδρομάχη"). His birth name was Scamandrius (in Greek: Σκαμάνδριος Skamandrios, after the river Scamander''A Classical Manual: Being a Mythological, Historical, and Geographical Commentary on Pope's Homer and Dryden's Aeneid of Virgil''. J. Murray, 1833, p. 189.), but the people of Troy nicknamed him Astyanax (i.e. high king, or overlord of the city), because he was the son of the city's great defender (''Iliad'' VI, 403) and the heir apparent's firstborn son. During the Trojan War, Andromache hid the child in Hector's tomb, but the child was discovered. His fate was debated by the Greeks, for if he were allowed to live, it was feared he would avenge his father and rebuild Troy. In the version g ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hoplerythrinus Unitaeniatus
''Hoplerythrinus unitaeniatus'' is a species of trahira (family Erythrinidae). It is a tropical, pelagic freshwater fish Freshwater fish are those that spend some or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 1.05%. These environments differ from marine conditions in many ways, especially the difference in levels of s .... References Erythrinidae Taxa named by Johann Baptist von Spix Taxa_named_by_Louis_Agassiz Fish described in 1829 {{Characiformes-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eigenmannia Trilineata
''Eigenmannia'' is a genus of fish in the family Sternopygidae (glass knifefishes) native to tropical and subtropical South America (south to the Río de la Plata Basin), and Panama.Peixoto, L.A.W., Dutra, G.M. & Wosiacki, W.B. (2015). The Electric Glass Knifefishes of the ''Eigenmannia trilineata'' species-group (Gymnotiformes: Sternopygidae): monophyly and description of seven new species. ''Zoological Journal of the Linnean Society, 175 (2): 384–414.'' They are typically found in slow-flowing streams, along the edge of large rivers, in deep river channels and in floodplains, and the genus also includes ''E. vicentespelaea'', the only cave-adapted knifefish. ''Eigenmannia'' are often found near submerged roots, aquatic plants and floating meadows. Depending on the exact species, they have a maximum total length of . They are nocturnal, and feed on small invertebrates such as aquatic insect larvae and zooplanktonic crustaceans. Species These are the currently recogniz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bryconops Magoi
''Bryconops magoi'' is a small species of fish from South America. It is only found in Venezuela, along with sister species '' Bryconops collettei''. Its tail-fin markings help to differentiate it from various congeners, as does its fairly restricted range. It is most closely related to ''B. collettei'' and ''Bryconops caudomaculatus'', and it was once considered synonymous with the latter; specimens of ''B. magoi'' and ''B. collettei'' both were routinely misidentified as ''B. caudomaculatus'' before being given species distinction. Description ''B. magoi'' has a maximum size within the range of 7.0 cm (2.8 in), which places it to the smaller side of the genus ''Bryconops'' as a whole. Its caudal fin (tail fin) bears a rather diffuse ocellus (eyespot), the upper half of which is colored red; this is a similarity it shares with B. collettei. This eyespot is not well-defined, but is clear against the dark coloration of the caudal fin overall (which is dense in melanophores). Its ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bryconops Inpai
''Bryconops inpai'' is a small freshwater fish native to the rivers of South America. It only lives in two particular river systems - the Casiquiare and Negro - which means that its range is restricted to the northern half of the continent. It has indistinct humeral spots (patches near the pectoral fins), and is bluish-silver in life, which is unusual for members of ''Bryconops''; they are more often plain silver or greenish-silver. Because it is native to water types with little endemic plant life, most of its diet originates outside of the river system. It primarily preys on insects, such as ants and termites, that fall from trees above the water, and sometimes gets the opportunity to prey on aquatic larvae. Specimens will eat plants if available, mostly seeds and flowers. Description Some of the first specimens reached a length of 9.78 cm (3.85 in) in standard length (without the tail fin included). More often than not, however, ''B. inpai'' reaches a maximum of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Riparian Zone
A riparian zone or riparian area is the interface between land and a river or stream. Riparian is also the proper nomenclature for one of the terrestrial biomes of the Earth. Plant habitats and communities along the river margins and banks are called riparian vegetation, characterized by hydrophilic plants. Riparian zones are important in ecology, environmental resource management, and civil engineering because of their role in soil conservation, their habitat biodiversity, and the influence they have on fauna and aquatic ecosystems, including grasslands, woodlands, wetlands, or even non-vegetative areas. In some regions, the terms riparian woodland, riparian forest, riparian buffer zone, riparian corridor, and riparian strip are used to characterize a riparian zone. The word ''riparian'' is derived from Latin '' ripa'', meaning "river bank". Characteristics Riparian zones may be natural or engineered for soil stabilization or restoration. These zones are important nat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
